Where does “enlightenen” come from?

enlightenen (Middle English) comes from Old English inlīhtan, from Proto-Germanic inliuhtijaną, from Proto-Germanic liuhtijaną, from Proto-Indo-European lewḱ-, from Proto-Indo-European lewk- — bright; to shine; to see.

Ancestry of “enlightenen”, step by step

enlightenen traces back through two separate lines of ancestry.

via Old English inlīhtan

StepLanguageWordMeaning
1Old Englishinlīhtanto illuminate, enlighten
2Proto-Germanicinliuhtijanąto enlighten, illumine
3Proto-Germanicliuhtijanąto give light, shine
4Proto-Indo-Europeanlewḱ-lynx
5Proto-Indo-Europeanlewk-bright; to shine; to see

via Middle English lightnen

StepLanguageWordMeaning
1Middle Englishlightnento enlighten, illuminate

Words derived from “enlightenen

Every word from Proto-Indo-European lewk-Every word from Proto-Indo-European lewḱ-Every word from Proto-Germanic liuhtijaną